Yielding barrier net



Patented July 2o, 1943 l UNITED STATES PATENT OFFICE j Applicaton'August 26, 1940, Serial.` No.

t t. t tsciainls.leise-1); l l .'Ifhe invention relates toimprovements in yielding barrier nets andhas for its primary object thev provision of an improved yielding barrier net or construction arranged so as to be Well adapted to resist the strains and blows to which f it may be subjected in use.

-Another object of the invention is the provision of such an arrangement which is"so constructed as to permit of ready readjustments'in case of distortion in use.`

Other objects will appear hereinafter.

Theinventi'on consists of the combination and arrangements of parts hereinafter described and claimed.

The invention will be best understood by reference to the accompanying drawing forming a part of this specification and in which: l

Fig. 1 is a face view of one end of a iiexib barrier net embodying the invention and shown in position of use;

Fig. 2, an enlarged perspective View of the connection between the apices of bridles employed in the net construction;

Fig. 3, an enlarged section taken substantially on line 3 3 of Fig. 1, and

Fig. 4, an enlarged section taken substantially on line 4-4 of Fig. 1.

The embodiment of the invention illustrated in the drawing comprises a flexible barrier net having a top strand Ill, a bottom strand II and an intermediate strand I2, all in the form of to the cables IIl and Il at I 6 adjacent each end of the net, and converges thence inwardly away from the end of the net to an apex I'I as shown. Apex I'I passes freely through a thimble I8 which is embraced by an4 eye I9 formed by splicing at the corresponding end of the intermediate cable I2' as best shown in Fig. 2. A cla'mp 20 is arranged across each apex I1 adjacent the thimble I8 and the clamping engagement with the sides of the bridle I is rendered adjustable by means of the bolts 2I as will be readily understood.

A second bridle member 22 is arranged to cooperate with the bridle member I5 as indicated, the ends of the bridle member 22 being spliced vat 23 to the cables I0 and II at points further away from the end of the net and converge thence outwardly toward the bridle I5 to an apex 24 which is extended, as shown, through the eye ble ends 2l by the action oi the bridle I5. WhereV i9 ofV the corresponding end of thecable A clamp 25 is secured across the bridle 23 adjacent its apex `24 and rendered adjustable thereon by I`clamping`bolts 26.

The Vnetfthus providedr'is suspended in? the usual way on the ends of the pay-out cables Y21 and is carried in the usual way by theusual box or carriage 28 reciprocating vertically in the usual column 29 supported on the usual base 3U at`r eachside of the roadway 3| as will be read-- ily understood by those skilled in this art.

'f By this arrangement a barrier net is provided the` chief strain or blow is applied to either the top or the bottom cable the same will be transmitted to the other cable and thereby substantially uniform pay-out of the cables 21 caused with corresponding substantial uniformity of transmission of strain. Should either side of either bridle mem-ber be directly struck or entangled so as to receive the chief strain, sufficient slippage will be permitted by the clamps 2D and 25 to effect an equalization of said strain to prevent rupture of the splice connections with the cables I0 and II. The intensity of strain at which this slippage will occur may be adjusted as necessary or desired by means of the bolts 2| and 25. After such a distortion it is obvious that the clamps may be readily released to permit of readjustments of the parts and the clamps mayV then be readjusted to exert the proper resistance on the sides of the bridle. Inas'much as the strains thus likely to be encountered by the bridles 22 are considerably less than those likely to be encountered by the bridles I5, the clamp members 25 are made correspondingly lighter as shown in Figs. 3 and 4.

While I have illustrated and described the preferred form and construction for carrying-the invention into effect, this is capable of `variation and modification without departing from the spirit of the invention. I therefore'do not wish to be limited to the precise details disclosed but desire to avail myself of such variations and modifications as fall Within the scope of the appended claims.

I claim:

1. A flexible substantially rectangular roadway barrier net comprising a top, a bottom and an intermediate strand; a bridle member at one end of the net having its ends secured to said top and bottom strands adjacent their ends and converging thence inwardly away from the end of the net to an apex having a connection with the corresponding end of said intermediate strand which will slip under extraordinary strain.

2. The construction specified in claim 1 in which the bridle ends are spliced to the top and bottom strands and the connection between the bridle apex and the intermediate strand is a sliding one.

3. The construction specified in claim 1 in which the bridle ends are spliced to the top and bottom strands and the connection between the bridle apex and the intermediate strand is a sliding one and the end of the intermediate strand is provided with an eye embracing a thimble and the apex of the bridle passes through said thimble.

4. The construction specified in claim 1 in which the bridle ends are spliced to the top and bottom strands andthe end of the intermediate strand is provided with an eye embracing a thimble and the apex of the bridle passes through said thimble and a clamp is arranged across said apex adjacent said thimble to resist sliding of the bridle through said thimble except under extraordinary strains.

5. A exible barrier substantially rectangular roadway barrier net comprising a top, a bottom, and an intermediate strand; a first bridle member at one end of the net having its ends secured to said top and bottom strands adjacent their ends and converging thence inwardly away from the end of the net to an apex having a connection with the corresponding end of said intermediate strand which will slip under extraordinary Strain; and a second bridle member cooperating with said rst mentioned bridle member, having its ends secured to said top and bottom strands at points further away from the net end and converging thence outwardly toward the net end to anapex having a connection with the apex of the first mentioned bridle.

6. 'I'he construction specied in claim 5 in which the bridle ends are spliced to the top and bottom strands and the connection between the bridle apices is a slidable one.

. 7. The construction specified in claim 5 in which the bridle ends are spliced to the top and bottom strands and the connection between the bridle apices is a slidable one, and the end of the intermediate strand is provided with an eye and the apices of the bridles pass through said eye.

8. The construction specified in claim 5 in which the bridle ends are spliced to the top and bottom strands and the connection between the bridle apices is a slidable one, and the end of the intermediate strand is provided with an eye and the apices of the bridles pass through said eye and clamps are arranged across said apices adjacent said eye to resist sliding of the bridles through said eye except under extraordinary strains.

EMERSON D. SAWYER. 

